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Finding the Fourth Proportional to 723,690.32, 998,563.56 and 437,018.48

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Solution

The fourth proportional to 723,690.32, 998,563.56 and 437,018.48 is: 603,007.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,690.32 : 998,563.56 = 437,018.48 : x
  2. Step 2: Convert to fraction form
    723,690.32/998,563.56 = 437,018.48/x
  3. Step 3: Cross multiply
    723,690.32x = 998,563.56 × 437,018.48
  4. Step 4: Simplify right side
    723,690.32x = 436,390,729,174.59
  5. Step 5: Solve for x
    x = 436,390,729,174.59/723,690.32
  6. Step 6: Final answer
    x = 603,007.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.